Oil-burner-regulating valve.



A. Q. NASH.

OIL BURNER REGULATING VALVE.

APPLICATION FILED APR. 6. m1.

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ATTORNEY.

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ALEXANDER Q. NASH, OF KANSAS CITY, MISSOURI.

OIL-BURNER-REGULATING VALVE.

Specification of Letters Patent.

Patented Oct. s, 1918.

Application filed April 6, 1917. Serial No. 160,080.

To all whom it may concern.

Be it known that I, ALEXANDER Q. NASH, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Oil- Burner-Regulating Valves, of which the following is a full, clear, andexact description, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to regulating valves for oil burners and provides a valve that is not easily obstructed by deposits from heavy oils or foreign substances in the oils, together with means for removing such obstructions when they become present.

It is well known that regulating valves for oil burners must be so constructed as to admit the fluid oil and regulate the oil vapor, the oil being admitted to the generating pan for the purpose of heating and vaporizing the oil, and the vapor being regulated to correspond to the desired volume of flame after the oil has been vaporized. I

The vaporization of the oil by heat produces a certain amount of residue that is carried to the regulating valve by the flow of vapor, thus obstructing the opening of the valve and decreasing the flow of the, vapor often to the extent of extinguishing the flame, the latter being very-dangerous as the oil often flows to the burner after the flame is extinguished, and after the space provided in the burner to hold excess oil has been filled any continued flow of the oil will result in overflow from the burner, sometimes resulting in disastrous fires.

The present invention provides a regulating valve for oil burners, and from which obstructing matter may be removed without extinguishing the flame.

With these and other objects in view the invention consists in the features of construetion, combinations and arrangements of parts hereinafter set forth and more fully pointed out in the appended claims, the accompanying drawings illustrating a form of valve to which the essential features of the invention are applied.

In the drawings Figure 1 is a view in side elevation of the improved regulating valve.

Fig. 2 is a view in end elevation of the valve.

Fig. 3 is a fragmentary view of the seating end of the valve stem.

Fig. 4 is a view of the seating end of the valve stem.

In detail: The valve comprises a body 5 provided with a bore 6 of uniform diameter from the end 7 of the body to a point 8 therein, the bore then tapers and finally terminates in a smooth straight short bore 9, the tapering portion forming a seat 10 for the valve element to be hereinafter described.

The boss 11 projects from the body 5 and is provided with the hole 12 connecting with "the bore 6 and having the thread 13 for connection with a supply pipe, the flange 14: being integral with the boss and body and serving as a means of attachment to burners and the like, it serves also as a connection for the arm 15 to which the lever 16 is pivoted by the pin 17. r

The valve element comprises a stem 18 which has rigidly mounted thereon the knurled handle 19 for the purpose of rotating the stem. This stem 18. is straight from the handle to the tapering shoulderv 20, from which it is'reduced in size to the seat 21 so as to be smaller than the bore in order that the oil may enter through the hole 12 and around the stem to the seats 10 and 21 of the body and, stem respectively, the stem at 22 being fitted closely to the hole 9, excepting the two sides thereof 23 which are slabbed and taper to the end 24 of the stem.

The lever 16 depends from the pivot pin 17 and passes on both sides of the stem 18, continuing downward and forming the handle 25 by which the stem 18 is reciprocated to open and close the valve. r

The pair of washers 26 are loosely mount ed on the stem 18 and on opposite sides of the lever 16, the cotter pins 27 passing through the stem adjacent and on the outer sides of the washers with respect to the lever to hold said washers in place, the washers and cotter pins thus serving to securely eonnect the stem to the lever in the direction of the movement of the stem to seat or unseat the valve by movement of the lever, and leaving the stem free to be rotated by the handle 19.

In Fig. 1 the seat 10 in dotted lines is shown slightly removed from the seat 21 said seat also being shown in dotted lines, the relative position of the lever 16 and handle 25 being shown in full lines, while the dotted lines 25 show the position of the lever when the seats are in contact and the dotted lines 25 show a position of the lever and handle with the seats still' farther separated than the open position just described.

While the seats 10 and 21 must be separated to allow the fluid to flow through the hole 9, the separation of the seats does not admit the liquid through the hole until a portion of the flat surfaces 23 have been withdrawn from the hole, for the reason that the stem portion 22 fits the hole, these sides 23 are tapering as shown and the farther the slabbed sides are withdrawn from the hole 9 the greater will be theopenmg.

These slabbed sides are not easily obstructed by residue from the vaporized oil or other substances, and when they do become so obstructed the handle 25 can be moved to and fro as indicated by the dotted lines 25 and 25 and the stem can be rotated by the handle 19 and the obstruction is instantly removed without extinguishing the flame of the burner whichthe valve may serve.

What I claim as new, and'desire to secure by Letters Patent, is

1. In a regulating valve, a body, a hole longitudinally through said body, said hole having a large portion, a tapering portion, and a small portion, a pipe connecting hole communicating with the large portion of said hole, a stem in said longitudinal hole and filling the large portion thereof for a portion of the length thereof, said stem filling diametrically said small portion of said hole, said stem provided with a tapering fiat side along the small portion thereof, means to reciprocate said stem, and means to rotate said stem.

2. In a regulating valve, a body, a straight hole longitudinally of said body for a portion of the length ofsaid body, a pipe connecting hole communicating with said longitudinal hole, said longitudinal hole having Copies of this patent may be obtained for a tapering portion, a. small hole continuing from said tapering portion through said body, a stem through said body and filling said longitudinal hole from the large end .thereof .to adjacent said pipe connecting tapering flat side on the small portion thereof, means to reciprocate said stem, and means to rotate said stem.

3; In an oil burner regulating valve, a

valve body having an outlet bore of uniform diameter, and a reciprocable valve element having a plug end turned to fit said bore and provided with'means to permit flow of the combustible mixture.

4. In an oil burner regulating valve, a valve body having an outlet bore of uniform diameter, and areciprocable valve element having a plug end turned to fit said bore and slabbed on a taper-at one or more places to permit flow of the combustible mixture.

5. In an oil burner regulating valve, a valve body having an outlet bore of uniform diameter, and a reciprocable valve element having a plug end turned to fit said bore and provided with fiattened'surfaces tapered toward the-outlet end of the valve to per- -mit flow of the combustible mixture and provide for cleaning the outlet bore by rotation and reciprocation of the valve element. i

6. In an oil burner regulating valve, a valve body having an outlet bore, and a reciprocable and rotatable valve element having a plug end turned to fit said bore and provided with flattened surfaces tapered toward the outlet end of the valve to permit flow of the combustible mixture and provide for cleaning the outlet bore by rotation and reciprocation of the valve ele-' ment.

ALEXANDER Q; NASH. e

five cents each, by addressing-the Commissioner of Patents, Washington, D G. a 

